Update source files

frontend/src/browser/analytics/wasmAnalytics.ts

@@ -0,0 +1,30 @@
+import type { AnalyticsAPI } from "@/shared/analytics/AnalyticsAPI";
+
+/**
+ * Browser/WASM implementation of AnalyticsAPI.
+ *
+ * Events are sent through the WASM worker which handles batching and
+ * sending to PostHog.
+ */
+export class WasmAnalytics implements AnalyticsAPI {
+  private worker: Worker | null = null;
+
+  constructor(worker: Worker) {
+    this.worker = worker;
+  }
+
+  track(event: string, properties?: Record<string, any>): void {
+    if (!this.worker) {
+      console.error("Worker not set for analytics");
+      return;
+    }
+
+    this.worker.postMessage({
+      type: "ANALYTICS_EVENT",
+      payload: {
+        event,
+        properties: properties || {},
+      },
+    });
+  }
+}